San Francisco 49ers' tight end Vernon Davis,(85) as seen on Thursday July 24, 2014 during training camp as the team prepares for the 2014 season in Santa Clara, Calif.

San Francisco 49ers' tight end Vernon Davis,(85) as seen on Thursday July 24, 2014 during training camp as the team prepares for the 2014 season in Santa Clara, Calif.

Photo: Michael Macor, The Chronicle

San Francisco 49ers' tight end Vernon Davis,(85) as seen on... Photo-6638675.90275 - SFGate

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San Francisco 49ers head coach Jim Harbaugh leaves the podium after holding his first press conference in the new Levi's Stadium, on Thursday July 24, 2014 during training camp as the team prepares for the 2014 season in Santa Clara, Calif. less

San Francisco 49ers head coach Jim Harbaugh leaves the podium after holding his first press conference in the new Levi's Stadium, on Thursday July 24, 2014 during training camp as the team prepares for the 2014 ... more

San Francisco 49ers head coach Jim Harbaugh holds his first press conference in the new Levi's Stadium during training camp as the team prepares for the 2014 season in Santa Clara, Calif., on Thursday July 24, 2014. less

San Francisco 49ers head coach Jim Harbaugh holds his first press conference in the new Levi's Stadium during training camp as the team prepares for the 2014 season in Santa Clara, Calif., on Thursday July 24, ... more

San Francisco 49ers head coach Jim Harbaugh holds his first press conference in the new Levi's Stadium during training camp as the team prepares for the 2014 season in Santa Clara, Calif., on Thursday July 24, 2014. less

San Francisco 49ers head coach Jim Harbaugh holds his first press conference in the new Levi's Stadium during training camp as the team prepares for the 2014 season in Santa Clara, Calif., on Thursday July 24, ... more

Justin Smith, (94) wears a tee shirt showing their defensive line as the San Francisco 49ers' veterans reported to training camp today for the 2014 season at their practice facility in Santa Clara, Calif., as seen on Wednesday July 23, 2014. less

Justin Smith, (94) wears a tee shirt showing their defensive line as the San Francisco 49ers' veterans reported to training camp today for the 2014 season at their practice facility in Santa Clara, Calif., as ... more

Quarterback Colin Kaepernick, (7) talks with the news media as the San Francisco 49ers' veteran players reported to training camp today to prepare for the 2014 season at their practice facility in Santa Clara, Calif., as seen on Wednesday July 23, 2014. less

Quarterback Colin Kaepernick, (7) talks with the news media as the San Francisco 49ers' veteran players reported to training camp today to prepare for the 2014 season at their practice facility in Santa Clara, ... more

Linebacker Patrick Willis, (52) talks with the news media as the San Francisco 49ers' veteran players reported to training camp today to prepare for the 2014 season at their practice facility in Santa Clara, Calif., as seen on Wednesday July 23, 2014. less

Linebacker Patrick Willis, (52) talks with the news media as the San Francisco 49ers' veteran players reported to training camp today to prepare for the 2014 season at their practice facility in Santa Clara, ... more

Running back Frank Gore, (21) talks with the news media as the San Francisco 49ers' veteran players reported to training camp today to prepare for the 2014 season at their practice facility in Santa Clara, Calif., as seen on Wednesday July 23, 2014. less

Running back Frank Gore, (21) talks with the news media as the San Francisco 49ers' veteran players reported to training camp today to prepare for the 2014 season at their practice facility in Santa Clara, ... more

Photo: Michael Macor, The Chronicle

Running back Frank Gore, (21) talks with the news media as the San... Photo-6633993.90275 - SFGate

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Quarterback Colin Kaepernick, (7) talks with the news media as the San Francisco 49ers' veteran players reported to training camp today to prepare for the 2014 season at their practice facility in Santa Clara, Calif., as seen on Wednesday July 23, 2014. less

Quarterback Colin Kaepernick, (7) talks with the news media as the San Francisco 49ers' veteran players reported to training camp today to prepare for the 2014 season at their practice facility in Santa Clara, ... more

Wide receiver Stevie Johnson, (13) talks with the news media as the San Francisco 49ers' veteran players reported to training camp today to prepare for the 2014 season at their practice facility in Santa Clara, Calif., as seen on Wednesday July 23, 2014. less

Wide receiver Stevie Johnson, (13) talks with the news media as the San Francisco 49ers' veteran players reported to training camp today to prepare for the 2014 season at their practice facility in Santa Clara, ... more

Quarterback Colin Kaepernick, (7) talks with the news media as the San Francisco 49ers' veteran players reported to training camp today to prepare for the 2014 season at their practice facility in Santa Clara, Calif., as seen on Wednesday July 23, 2014. less

Quarterback Colin Kaepernick, (7) talks with the news media as the San Francisco 49ers' veteran players reported to training camp today to prepare for the 2014 season at their practice facility in Santa Clara, ... more

Running back Frank Gore, (21) talks with the news media as the San Francisco 49ers' veteran players reported to training camp today to prepare for the 2014 season at their practice facility in Santa Clara, Calif., as seen on Wednesday July 23, 2014. less

Running back Frank Gore, (21) talks with the news media as the San Francisco 49ers' veteran players reported to training camp today to prepare for the 2014 season at their practice facility in Santa Clara, ... more

Photo: Michael Macor, The Chronicle

Running back Frank Gore, (21) talks with the news media as the San... Photo-6633998.90275 - SFGate

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Wide receiver Stevie Johnson, (13) prepares to talk with the news media as the San Francisco 49ers' veteran players reported to training camp today to prepare for the 2014 season at their practice facility in Santa Clara, Calif., as seen on Wednesday July 23, 2014. less

Wide receiver Stevie Johnson, (13) prepares to talk with the news media as the San Francisco 49ers' veteran players reported to training camp today to prepare for the 2014 season at their practice facility in ... more

Wide receiver Stevie Johnson, (13) talks with the news media as the San Francisco 49ers' veterans reported to training camp today for the 2014 season at their practice facility in Santa Clara, Calif., as seen on Wednesday July 23, 2014. less

Wide receiver Stevie Johnson, (13) talks with the news media as the San Francisco 49ers' veterans reported to training camp today for the 2014 season at their practice facility in Santa Clara, Calif., as seen ... more

Justin Smith, (94) talks with the media as the San Francisco 49ers' veterans reported to training camp today for the 2014 season at their practice facility in Santa Clara, Calif., as seen on Wednesday July 23, 2014. less

Justin Smith, (94) talks with the media as the San Francisco 49ers' veterans reported to training camp today for the 2014 season at their practice facility in Santa Clara, Calif., as seen on Wednesday July 23, ... more

Photo: Michael Macor, The Chronicle

Justin Smith, (94) talks with the media as the San Francisco... Photo-6634001.90275 - SFGate

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Linebacker Patrick Willis, (52) talks with the news media as the San Francisco 49ers' veteran players reported to training camp today to prepare for the 2014 season at their practice facility in Santa Clara, Calif., as seen on Wednesday July 23, 2014. less

Linebacker Patrick Willis, (52) talks with the news media as the San Francisco 49ers' veteran players reported to training camp today to prepare for the 2014 season at their practice facility in Santa Clara, ... more

Quarterback Colin Kaepernick, (7) talks with the news media as the San Francisco 49ers' veteran players reported to training camp today to prepare for the 2014 season at their practice facility in Santa Clara, Calif., as seen on Wednesday July 23, 2014. less

Quarterback Colin Kaepernick, (7) talks with the news media as the San Francisco 49ers' veteran players reported to training camp today to prepare for the 2014 season at their practice facility in Santa Clara, ... more